********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 7 April 2022 Vol. XXXV No. 014 ______________________________________________________________________ GENERAL INFORMATION: MJD = Julian Date - 2 400 000.5 days UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T) - 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T) where pi = 3.14159265... and T is the date in Besselian years. TT = TAI + 32.184 seconds DUT1= (UT1-UTC) transmitted with time signals = -0.1 seconds beginning 17 July 2021 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 seconds *********************************************************************** * ANNOUNCEMENTS: * * * * There will NOT be a leap second introduced * * in UTC at the end of June 2022 * * * * We are pleased to announce the re-opening of the official * * IERS Rapid Service / Prediction Center website at: * * https://maia.usno.navy.mil * * * * Starting Feb 10, 2022, this site will be the primary public source * * for data products published by the IERS Rapid Service / Prediction * * Center, as well as the primary source for announcements and * * information concerning those products. The latest IERS Bulletin A * * can be accessed at https://maia.usno.navy.mil/ser7/ser7.dat * * * * In addition to the overhauled website design, we have also made * * our services more robust and secure: * * * * - We have moved to distributing our products via HTTPS for * * increased data integrity and security of data transmission. * * Please note that unsecured plain HTTP is no longer supported. * * - The website and data are now hosted on an Amazon Web Services * * Cloud environment, improving server up-time and reliability. * * - We have consolidated our publication servers to a single * * instance, removing any confusion over the "best" server to use. * * The former backup site (toshi.nofs.navy.mil) has been retired * * and will not be returning. * * - A new version of the EO Matrix Calculator web application * * with an improved interface is now available at * * https://maia.usno.navy.mil/matrix-calculator * * * * During the outage, we hope you were able to continue receiving * * our products through NASA CDDIS, which graciously provided a * * mirror for our data while our main site was down. While this * * was not ideal for some customers, we thank you for your patience * * and understanding while we made several improvements to * * our website. All data products will continue to be uploaded to * * the CDDIS mirrors at https://cddis.nasa.gov/archive/products/iers/ * * and ftps://gdc.cddis.eosdis.nasa.gov/products/iers/ , so users * * should not expect any of their current links or data retrieval * * scripts to break. However, we encourage users to review * * their options and begin transitioning to https://maia.usno.navy.mil * * as their primary source if it meets their needs, as it will * * receive our publications more promptly and directly, without * * any need to login to the NASA Earthdata system. * * Updated EOPs may also be available at IERS: * * https://datacenter.iers.org/eop.php * * EOP data files are uploaded directly from USNO to this site each * * day. For further information, contact the IERS directly. * * * * Questions and enquiries about EOPs can be emailed to the * * following address: * * usn.ncr.navobsydc.mbx.eopcp@mail.mil * * * * Distribution statement A. * * Approved for public release: distribution unlimited. * * * *********************************************************************** ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at . The contributed analysis results are based on data from Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and meteorological predictions of variations in Atmospheric Angular Momentum (AAM). ________________________________________________________________________ COMBINED EARTH ORIENTATION PARAMETERS: IERS Rapid Service MJD x error y error UT1-UTC error " " " " s s 22 4 1 59670 0.04339 .00009 0.42686 .00009 -0.099520 0.000010 22 4 2 59671 0.04362 .00009 0.42890 .00009 -0.099793 0.000018 22 4 3 59672 0.04435 .00009 0.43106 .00009 -0.100010 0.000016 22 4 4 59673 0.04508 .00009 0.43356 .00009 -0.100062 0.000012 22 4 5 59674 0.04564 .00009 0.43608 .00009 -0.099943 0.000012 22 4 6 59675 0.04646 .00009 0.43824 .00009 -0.099580 0.000010 22 4 7 59676 0.04768 .00009 0.44011 .00009 -0.099048 0.000055 IERS Final Values MJD x y UT1-UTC " " s 22 2 2 59612 0.0258 0.3255 -0.10714 22 2 3 59613 0.0257 0.3278 -0.10710 22 2 4 59614 0.0258 0.3300 -0.10722 22 2 5 59615 0.0257 0.3322 -0.10743 22 2 6 59616 0.0257 0.3339 -0.10761 22 2 7 59617 0.0258 0.3356 -0.10769 22 2 8 59618 0.0252 0.3374 -0.10759 22 2 9 59619 0.0241 0.3385 -0.10730 22 2 10 59620 0.0230 0.3395 -0.10680 22 2 11 59621 0.0213 0.3406 -0.10611 22 2 12 59622 0.0195 0.3420 -0.10529 22 2 13 59623 0.0180 0.3432 -0.10443 22 2 14 59624 0.0172 0.3443 -0.10364 22 2 15 59625 0.0168 0.3458 -0.10299 22 2 16 59626 0.0164 0.3476 -0.10253 22 2 17 59627 0.0162 0.3500 -0.10229 22 2 18 59628 0.0159 0.3526 -0.10228 22 2 19 59629 0.0161 0.3550 -0.10248 22 2 20 59630 0.0162 0.3574 -0.10282 22 2 21 59631 0.0162 0.3595 -0.10320 22 2 22 59632 0.0167 0.3613 -0.10353 22 2 23 59633 0.0176 0.3628 -0.10371 22 2 24 59634 0.0185 0.3644 -0.10369 22 2 25 59635 0.0189 0.3658 -0.10347 22 2 26 59636 0.0196 0.3672 -0.10310 22 2 27 59637 0.0202 0.3688 -0.10268 22 2 28 59638 0.0207 0.3706 -0.10232 22 3 1 59639 0.0209 0.3723 -0.10214 _______________________________________________________________________ PREDICTIONS: The following formulas will not reproduce the predictions given below, but may be used to extend the predictions beyond the end of this table. x = 0.1373 - 0.0910 cos A + 0.0515 sin A + 0.0012 cos C + 0.0363 sin C y = 0.3588 + 0.0472 cos A + 0.0843 sin A + 0.0363 cos C - 0.0012 sin C UT1-UTC = -0.0567 + 0.00025 (MJD - 59684) - (UT2-UT1) where A = 2*pi*(MJD-59676)/365.25 and C = 2*pi*(MJD-59676)/435. TAI-UTC(MJD 59677) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-59676)**0.80 S t = 0.00025 (MJD-59676)**0.75 Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d Polar coord's 0.004 0.007 0.010 0.013 UT1-UTC 0.0014 0.0024 0.0032 0.0040 MJD x(arcsec) y(arcsec) UT1-UTC(sec) 2022 4 8 59677 0.0490 0.4418 -0.09846 2022 4 9 59678 0.0505 0.4434 -0.09786 2022 4 10 59679 0.0521 0.4450 -0.09727 2022 4 11 59680 0.0536 0.4464 -0.09677 2022 4 12 59681 0.0552 0.4478 -0.09642 2022 4 13 59682 0.0566 0.4492 -0.09629 2022 4 14 59683 0.0581 0.4504 -0.09641 2022 4 15 59684 0.0595 0.4516 -0.09675 2022 4 16 59685 0.0610 0.4527 -0.09720 2022 4 17 59686 0.0624 0.4539 -0.09763 2022 4 18 59687 0.0640 0.4550 -0.09794 2022 4 19 59688 0.0655 0.4562 -0.09802 2022 4 20 59689 0.0672 0.4573 -0.09782 2022 4 21 59690 0.0688 0.4583 -0.09739 2022 4 22 59691 0.0705 0.4593 -0.09682 2022 4 23 59692 0.0723 0.4602 -0.09623 2022 4 24 59693 0.0740 0.4611 -0.09574 2022 4 25 59694 0.0758 0.4620 -0.09542 2022 4 26 59695 0.0776 0.4628 -0.09530 2022 4 27 59696 0.0794 0.4636 -0.09534 2022 4 28 59697 0.0811 0.4644 -0.09546 2022 4 29 59698 0.0829 0.4652 -0.09557 2022 4 30 59699 0.0847 0.4660 -0.09557 2022 5 1 59700 0.0865 0.4667 -0.09540 2022 5 2 59701 0.0883 0.4674 -0.09502 2022 5 3 59702 0.0902 0.4681 -0.09444 2022 5 4 59703 0.0920 0.4688 -0.09368 2022 5 5 59704 0.0939 0.4694 -0.09278 2022 5 6 59705 0.0958 0.4700 -0.09181 2022 5 7 59706 0.0977 0.4706 -0.09086 2022 5 8 59707 0.0997 0.4712 -0.08998 2022 5 9 59708 0.1016 0.4717 -0.08926 2022 5 10 59709 0.1035 0.4723 -0.08873 2022 5 11 59710 0.1055 0.4727 -0.08843 2022 5 12 59711 0.1075 0.4732 -0.08834 2022 5 13 59712 0.1095 0.4736 -0.08842 2022 5 14 59713 0.1114 0.4740 -0.08857 2022 5 15 59714 0.1134 0.4744 -0.08864 2022 5 16 59715 0.1154 0.4747 -0.08852 2022 5 17 59716 0.1174 0.4751 -0.08812 2022 5 18 59717 0.1194 0.4754 -0.08745 2022 5 19 59718 0.1215 0.4756 -0.08662 2022 5 20 59719 0.1235 0.4758 -0.08573 2022 5 21 59720 0.1255 0.4760 -0.08493 2022 5 22 59721 0.1276 0.4762 -0.08429 2022 5 23 59722 0.1296 0.4763 -0.08384 2022 5 24 59723 0.1317 0.4765 -0.08355 2022 5 25 59724 0.1337 0.4765 -0.08335 2022 5 26 59725 0.1358 0.4766 -0.08315 2022 5 27 59726 0.1378 0.4766 -0.08287 2022 5 28 59727 0.1399 0.4766 -0.08246 2022 5 29 59728 0.1419 0.4765 -0.08186 2022 5 30 59729 0.1440 0.4765 -0.08107 2022 5 31 59730 0.1461 0.4763 -0.08008 2022 6 1 59731 0.1481 0.4762 -0.07896 2022 6 2 59732 0.1502 0.4760 -0.07774 2022 6 3 59733 0.1522 0.4758 -0.07652 2022 6 4 59734 0.1543 0.4756 -0.07535 2022 6 5 59735 0.1563 0.4754 -0.07431 2022 6 6 59736 0.1584 0.4751 -0.07343 2022 6 7 59737 0.1604 0.4747 -0.07276 2022 6 8 59738 0.1624 0.4744 -0.07230 2022 6 9 59739 0.1645 0.4740 -0.07201 2022 6 10 59740 0.1665 0.4736 -0.07183 2022 6 11 59741 0.1685 0.4732 -0.07166 2022 6 12 59742 0.1705 0.4727 -0.07136 2022 6 13 59743 0.1725 0.4722 -0.07084 2022 6 14 59744 0.1745 0.4717 -0.07006 2022 6 15 59745 0.1765 0.4711 -0.06907 2022 6 16 59746 0.1785 0.4705 -0.06799 2022 6 17 59747 0.1804 0.4699 -0.06696 2022 6 18 59748 0.1824 0.4692 -0.06609 2022 6 19 59749 0.1843 0.4686 -0.06542 2022 6 20 59750 0.1863 0.4679 -0.06492 2022 6 21 59751 0.1882 0.4671 -0.06452 2022 6 22 59752 0.1901 0.4664 -0.06413 2022 6 23 59753 0.1920 0.4656 -0.06365 2022 6 24 59754 0.1939 0.4647 -0.06302 2022 6 25 59755 0.1957 0.4639 -0.06220 2022 6 26 59756 0.1976 0.4630 -0.06118 2022 6 27 59757 0.1994 0.4621 -0.05996 2022 6 28 59758 0.2012 0.4612 -0.05857 2022 6 29 59759 0.2030 0.4602 -0.05707 2022 6 30 59760 0.2048 0.4592 -0.05553 2022 7 1 59761 0.2066 0.4582 -0.05402 2022 7 2 59762 0.2084 0.4572 -0.05261 2022 7 3 59763 0.2101 0.4561 -0.05135 2022 7 4 59764 0.2118 0.4550 -0.05028 2022 7 5 59765 0.2135 0.4539 -0.04939 2022 7 6 59766 0.2152 0.4528 -0.04867 2022 7 7 59767 0.2168 0.4516 -0.04807 2022 7 8 59768 0.2185 0.4504 -0.04750 2022 7 9 59769 0.2201 0.4492 -0.04685 2022 7 10 59770 0.2217 0.4479 -0.04603 2022 7 11 59771 0.2233 0.4467 -0.04498 2022 7 12 59772 0.2248 0.4454 -0.04370 2022 7 13 59773 0.2264 0.4441 -0.04230 2022 7 14 59774 0.2279 0.4427 -0.04090 2022 7 15 59775 0.2293 0.4414 -0.03965 2022 7 16 59776 0.2308 0.4400 -0.03862 2022 7 17 59777 0.2322 0.4386 -0.03782 2022 7 18 59778 0.2336 0.4372 -0.03718 2022 7 19 59779 0.2350 0.4357 -0.03659 2022 7 20 59780 0.2364 0.4343 -0.03594 2022 7 21 59781 0.2377 0.4328 -0.03515 2022 7 22 59782 0.2390 0.4313 -0.03416 2022 7 23 59783 0.2403 0.4298 -0.03298 2022 7 24 59784 0.2415 0.4282 -0.03160 2022 7 25 59785 0.2428 0.4267 -0.02999 2022 7 26 59786 0.2440 0.4251 -0.02829 2022 7 27 59787 0.2451 0.4235 -0.02654 2022 7 28 59788 0.2463 0.4219 -0.02483 2022 7 29 59789 0.2474 0.4202 -0.02322 2022 7 30 59790 0.2485 0.4186 -0.02177 2022 7 31 59791 0.2495 0.4169 -0.02052 2022 8 1 59792 0.2505 0.4152 -0.01948 2022 8 2 59793 0.2515 0.4135 -0.01861 2022 8 3 59794 0.2525 0.4118 -0.01787 2022 8 4 59795 0.2534 0.4101 -0.01718 2022 8 5 59796 0.2543 0.4084 -0.01645 2022 8 6 59797 0.2552 0.4066 -0.01559 2022 8 7 59798 0.2560 0.4048 -0.01455 2022 8 8 59799 0.2568 0.4031 -0.01331 2022 8 9 59800 0.2576 0.4013 -0.01193 2022 8 10 59801 0.2584 0.3995 -0.01053 2022 8 11 59802 0.2591 0.3977 -0.00925 2022 8 12 59803 0.2597 0.3958 -0.00820 2022 8 13 59804 0.2604 0.3940 -0.00743 2022 8 14 59805 0.2610 0.3922 -0.00689 2022 8 15 59806 0.2616 0.3903 -0.00648 2022 8 16 59807 0.2621 0.3885 -0.00608 2022 8 17 59808 0.2626 0.3866 -0.00557 2022 8 18 59809 0.2631 0.3847 -0.00489 2022 8 19 59810 0.2636 0.3828 -0.00400 2022 8 20 59811 0.2640 0.3809 -0.00292 2022 8 21 59812 0.2643 0.3790 -0.00167 2022 8 22 59813 0.2647 0.3771 -0.00032 2022 8 23 59814 0.2650 0.3752 0.00108 2022 8 24 59815 0.2653 0.3733 0.00245 2022 8 25 59816 0.2655 0.3714 0.00372 2022 8 26 59817 0.2657 0.3695 0.00483 2022 8 27 59818 0.2659 0.3676 0.00572 2022 8 28 59819 0.2660 0.3656 0.00640 2022 8 29 59820 0.2661 0.3637 0.00687 2022 8 30 59821 0.2662 0.3618 0.00719 2022 8 31 59822 0.2662 0.3599 0.00745 2022 9 1 59823 0.2662 0.3579 0.00773 2022 9 2 59824 0.2662 0.3560 0.00812 2022 9 3 59825 0.2661 0.3541 0.00870 2022 9 4 59826 0.2660 0.3522 0.00946 2022 9 5 59827 0.2659 0.3502 0.01037 2022 9 6 59828 0.2657 0.3483 0.01133 2022 9 7 59829 0.2655 0.3464 0.01221 2022 9 8 59830 0.2653 0.3445 0.01289 2022 9 9 59831 0.2650 0.3426 0.01330 2022 9 10 59832 0.2647 0.3407 0.01343 2022 9 11 59833 0.2643 0.3388 0.01335 2022 9 12 59834 0.2640 0.3369 0.01319 2022 9 13 59835 0.2635 0.3350 0.01309 2022 9 14 59836 0.2631 0.3331 0.01313 2022 9 15 59837 0.2626 0.3312 0.01338 2022 9 16 59838 0.2621 0.3293 0.01384 2022 9 17 59839 0.2616 0.3275 0.01449 2022 9 18 59840 0.2610 0.3256 0.01527 2022 9 19 59841 0.2604 0.3238 0.01612 2022 9 20 59842 0.2597 0.3219 0.01695 2022 9 21 59843 0.2590 0.3201 0.01771 2022 9 22 59844 0.2583 0.3183 0.01831 2022 9 23 59845 0.2576 0.3165 0.01872 2022 9 24 59846 0.2568 0.3147 0.01889 2022 9 25 59847 0.2560 0.3129 0.01884 2022 9 26 59848 0.2551 0.3111 0.01861 2022 9 27 59849 0.2543 0.3094 0.01827 2022 9 28 59850 0.2534 0.3077 0.01794 2022 9 29 59851 0.2524 0.3059 0.01771 2022 9 30 59852 0.2515 0.3042 0.01767 2022 10 1 59853 0.2505 0.3025 0.01783 2022 10 2 59854 0.2494 0.3008 0.01817 2022 10 3 59855 0.2484 0.2992 0.01859 2022 10 4 59856 0.2473 0.2975 0.01898 2022 10 5 59857 0.2462 0.2959 0.01921 2022 10 6 59858 0.2450 0.2943 0.01919 2022 10 7 59859 0.2438 0.2927 0.01891 2022 10 8 59860 0.2426 0.2911 0.01839 2022 10 9 59861 0.2414 0.2895 0.01773 2022 10 10 59862 0.2401 0.2880 0.01708 2022 10 11 59863 0.2389 0.2864 0.01653 2022 10 12 59864 0.2375 0.2849 0.01619 2022 10 13 59865 0.2362 0.2834 0.01609 2022 10 14 59866 0.2348 0.2820 0.01622 2022 10 15 59867 0.2334 0.2805 0.01655 2022 10 16 59868 0.2320 0.2791 0.01701 2022 10 17 59869 0.2306 0.2777 0.01753 2022 10 18 59870 0.2291 0.2763 0.01802 2022 10 19 59871 0.2276 0.2750 0.01840 2022 10 20 59872 0.2261 0.2736 0.01863 2022 10 21 59873 0.2246 0.2723 0.01867 2022 10 22 59874 0.2230 0.2710 0.01849 2022 10 23 59875 0.2214 0.2698 0.01813 2022 10 24 59876 0.2198 0.2685 0.01766 2022 10 25 59877 0.2182 0.2673 0.01716 2022 10 26 59878 0.2165 0.2661 0.01675 2022 10 27 59879 0.2148 0.2649 0.01655 2022 10 28 59880 0.2131 0.2638 0.01659 2022 10 29 59881 0.2114 0.2627 0.01686 2022 10 30 59882 0.2097 0.2616 0.01729 2022 10 31 59883 0.2079 0.2605 0.01774 2022 11 1 59884 0.2062 0.2595 0.01808 2022 11 2 59885 0.2044 0.2585 0.01821 2022 11 3 59886 0.2026 0.2575 0.01809 2022 11 4 59887 0.2007 0.2566 0.01776 2022 11 5 59888 0.1989 0.2556 0.01730 2022 11 6 59889 0.1970 0.2547 0.01682 2022 11 7 59890 0.1952 0.2539 0.01645 2022 11 8 59891 0.1933 0.2530 0.01627 2022 11 9 59892 0.1914 0.2522 0.01630 2022 11 10 59893 0.1895 0.2514 0.01654 2022 11 11 59894 0.1875 0.2507 0.01698 2022 11 12 59895 0.1856 0.2499 0.01758 2022 11 13 59896 0.1836 0.2493 0.01824 2022 11 14 59897 0.1817 0.2486 0.01887 2022 11 15 59898 0.1797 0.2480 0.01941 2022 11 16 59899 0.1777 0.2473 0.01976 2022 11 17 59900 0.1757 0.2468 0.01994 2022 11 18 59901 0.1737 0.2462 0.01991 2022 11 19 59902 0.1717 0.2457 0.01974 2022 11 20 59903 0.1697 0.2452 0.01940 2022 11 21 59904 0.1676 0.2448 0.01899 2022 11 22 59905 0.1656 0.2443 0.01859 2022 11 23 59906 0.1635 0.2440 0.01830 2022 11 24 59907 0.1615 0.2436 0.01821 2022 11 25 59908 0.1594 0.2433 0.01826 2022 11 26 59909 0.1573 0.2430 0.01857 2022 11 27 59910 0.1553 0.2427 0.01895 2022 11 28 59911 0.1532 0.2425 0.01924 2022 11 29 59912 0.1511 0.2423 0.01943 2022 11 30 59913 0.1491 0.2421 0.01937 2022 12 1 59914 0.1470 0.2419 0.01923 2022 12 2 59915 0.1449 0.2418 0.01890 2022 12 3 59916 0.1428 0.2418 0.01856 2022 12 4 59917 0.1407 0.2417 0.01827 2022 12 5 59918 0.1386 0.2417 0.01816 2022 12 6 59919 0.1365 0.2417 0.01826 2022 12 7 59920 0.1345 0.2418 0.01855 2022 12 8 59921 0.1324 0.2418 0.01902 2022 12 9 59922 0.1303 0.2420 0.01969 2022 12 10 59923 0.1282 0.2421 0.02042 2022 12 11 59924 0.1262 0.2423 0.02112 2022 12 12 59925 0.1241 0.2425 0.02176 2022 12 13 59926 0.1220 0.2427 0.02224 2022 12 14 59927 0.1200 0.2430 0.02253 2022 12 15 59928 0.1179 0.2433 0.02264 2022 12 16 59929 0.1159 0.2436 0.02261 2022 12 17 59930 0.1138 0.2440 0.02236 2022 12 18 59931 0.1118 0.2444 0.02205 2022 12 19 59932 0.1098 0.2448 0.02168 2022 12 20 59933 0.1078 0.2453 0.02132 2022 12 21 59934 0.1058 0.2457 0.02109 2022 12 22 59935 0.1038 0.2463 0.02099 2022 12 23 59936 0.1018 0.2468 0.02100 2022 12 24 59937 0.0998 0.2474 0.02115 2022 12 25 59938 0.0979 0.2480 0.02127 2022 12 26 59939 0.0959 0.2486 0.02122 2022 12 27 59940 0.0940 0.2493 0.02095 2022 12 28 59941 0.0920 0.2500 0.02045 2022 12 29 59942 0.0901 0.2507 0.01983 2022 12 30 59943 0.0882 0.2515 0.01913 2022 12 31 59944 0.0864 0.2522 0.01852 2023 1 1 59945 0.0845 0.2530 0.01805 2023 1 2 59946 0.0826 0.2539 0.01779 2023 1 3 59947 0.0808 0.2547 0.01777 2023 1 4 59948 0.0790 0.2556 0.01783 2023 1 5 59949 0.0772 0.2566 0.01805 2023 1 6 59950 0.0754 0.2575 0.01840 2023 1 7 59951 0.0736 0.2585 0.01876 2023 1 8 59952 0.0719 0.2595 0.01904 2023 1 9 59953 0.0702 0.2605 0.01924 2023 1 10 59954 0.0685 0.2616 0.01937 2023 1 11 59955 0.0668 0.2627 0.01940 2023 1 12 59956 0.0651 0.2638 0.01923 2023 1 13 59957 0.0635 0.2649 0.01894 2023 1 14 59958 0.0619 0.2660 0.01862 2023 1 15 59959 0.0603 0.2672 0.01829 2023 1 16 59960 0.0587 0.2684 0.01807 2023 1 17 59961 0.0571 0.2697 0.01795 2023 1 18 59962 0.0556 0.2709 0.01802 2023 1 19 59963 0.0541 0.2722 0.01827 2023 1 20 59964 0.0526 0.2735 0.01874 2023 1 21 59965 0.0511 0.2748 0.01923 2023 1 22 59966 0.0497 0.2761 0.01960 2023 1 23 59967 0.0483 0.2775 0.01972 2023 1 24 59968 0.0469 0.2789 0.01967 2023 1 25 59969 0.0456 0.2803 0.01934 2023 1 26 59970 0.0442 0.2817 0.01888 2023 1 27 59971 0.0429 0.2832 0.01845 2023 1 28 59972 0.0416 0.2846 0.01818 2023 1 29 59973 0.0404 0.2861 0.01818 2023 1 30 59974 0.0392 0.2876 0.01836 2023 1 31 59975 0.0380 0.2891 0.01883 2023 2 1 59976 0.0368 0.2907 0.01951 2023 2 2 59977 0.0357 0.2922 0.02026 2023 2 3 59978 0.0346 0.2938 0.02095 2023 2 4 59979 0.0335 0.2954 0.02157 2023 2 5 59980 0.0324 0.2970 0.02201 2023 2 6 59981 0.0314 0.2986 0.02222 2023 2 7 59982 0.0304 0.3003 0.02227 2023 2 8 59983 0.0295 0.3019 0.02208 2023 2 9 59984 0.0286 0.3036 0.02171 2023 2 10 59985 0.0277 0.3053 0.02124 2023 2 11 59986 0.0268 0.3070 0.02072 2023 2 12 59987 0.0260 0.3087 0.02025 2023 2 13 59988 0.0252 0.3104 0.01981 2023 2 14 59989 0.0244 0.3121 0.01953 2023 2 15 59990 0.0237 0.3139 0.01948 2023 2 16 59991 0.0230 0.3156 0.01953 2023 2 17 59992 0.0223 0.3174 0.01968 2023 2 18 59993 0.0217 0.3191 0.01971 2023 2 19 59994 0.0211 0.3209 0.01953 2023 2 20 59995 0.0205 0.3227 0.01909 2023 2 21 59996 0.0199 0.3245 0.01831 2023 2 22 59997 0.0194 0.3263 0.01732 2023 2 23 59998 0.0190 0.3281 0.01626 2023 2 24 59999 0.0185 0.3300 0.01526 2023 2 25 60000 0.0181 0.3318 0.01446 2023 2 26 60001 0.0178 0.3336 0.01395 2023 2 27 60002 0.0174 0.3355 0.01371 2023 2 28 60003 0.0171 0.3373 0.01368 2023 3 1 60004 0.0168 0.3392 0.01381 2023 3 2 60005 0.0166 0.3410 0.01398 2023 3 3 60006 0.0164 0.3429 0.01406 2023 3 4 60007 0.0163 0.3447 0.01400 2023 3 5 60008 0.0161 0.3466 0.01379 2023 3 6 60009 0.0160 0.3485 0.01345 2023 3 7 60010 0.0160 0.3503 0.01291 2023 3 8 60011 0.0159 0.3522 0.01219 2023 3 9 60012 0.0159 0.3541 0.01135 2023 3 10 60013 0.0160 0.3559 0.01045 2023 3 11 60014 0.0161 0.3578 0.00945 2023 3 12 60015 0.0162 0.3596 0.00863 2023 3 13 60016 0.0163 0.3615 0.00795 2023 3 14 60017 0.0165 0.3634 0.00750 2023 3 15 60018 0.0167 0.3652 0.00721 2023 3 16 60019 0.0169 0.3671 0.00704 2023 3 17 60020 0.0172 0.3689 0.00690 2023 3 18 60021 0.0175 0.3708 0.00667 2023 3 19 60022 0.0179 0.3726 0.00625 2023 3 20 60023 0.0183 0.3744 0.00546 2023 3 21 60024 0.0187 0.3763 0.00452 2023 3 22 60025 0.0191 0.3781 0.00351 2023 3 23 60026 0.0196 0.3799 0.00254 2023 3 24 60027 0.0201 0.3817 0.00170 2023 3 25 60028 0.0207 0.3835 0.00117 2023 3 26 60029 0.0212 0.3853 0.00098 2023 3 27 60030 0.0218 0.3871 0.00105 2023 3 28 60031 0.0225 0.3888 0.00133 2023 3 29 60032 0.0232 0.3906 0.00165 2023 3 30 60033 0.0239 0.3923 0.00192 2023 3 31 60034 0.0246 0.3941 0.00208 2023 4 1 60035 0.0254 0.3958 0.00211 2023 4 2 60036 0.0262 0.3975 0.00193 2023 4 3 60037 0.0270 0.3992 0.00154 2023 4 4 60038 0.0279 0.4009 0.00096 2023 4 5 60039 0.0288 0.4026 0.00036 2023 4 6 60040 0.0297 0.4043 -0.00031 2023 4 7 60041 0.0307 0.4059 -0.00102 These predictions are based on all announced leap seconds. CELESTIAL POLE OFFSET SERIES: NEOS Celestial Pole Offset Series MJD dpsi error deps error (msec. of arc) 59654 -106.91 0.63 -8.16 0.10 59655 -106.93 0.63 -8.02 0.10 59656 -106.88 0.63 -7.89 0.10 59657 -106.87 0.70 -7.84 0.16 59658 -107.03 0.70 -7.88 0.16 59659 -107.37 0.60 -7.97 0.11 59660 -107.76 0.55 -8.06 0.07 59661 -108.02 0.52 -8.10 0.08 59662 -108.02 0.52 -8.13 0.08 59663 -107.74 0.52 -8.17 0.08 59664 -107.27 0.52 -8.24 0.08 59665 -106.76 0.55 -8.31 0.08 59666 -106.38 0.55 -8.37 0.08 59667 -106.19 0.77 -8.40 0.08 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 59612 -109.5 -6.3 59613 -109.1 -6.4 59614 -108.9 -6.4 59615 -109.1 -6.1 59616 -109.4 -5.9 59617 -109.9 -5.8 59618 -110.1 -5.9 59619 -110.2 -6.1 59620 -110.1 -6.2 59621 -109.7 -6.2 59622 -109.3 -6.3 59623 -108.9 -6.6 59624 -108.8 -6.8 59625 -108.7 -6.9 59626 -108.6 -6.8 59627 -108.4 -6.7 59628 -108.2 -6.7 59629 -108.2 -6.7 59630 -108.4 -6.7 59631 -108.6 -6.7 59632 -108.8 -6.6 59633 -109.1 -6.6 59634 -109.3 -6.6 59635 -109.3 -6.7 59636 -109.1 -6.9 59637 -108.9 -7.0 59638 -108.6 -7.1 59639 -108.5 -7.1 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 59654 0.251 0.251 -0.078 0.098 59655 0.254 0.251 -0.092 0.098 59656 0.259 0.251 -0.104 0.098 59657 0.261 0.280 -0.109 0.163 59658 0.258 0.280 -0.107 0.163 59659 0.251 0.238 -0.102 0.109 59660 0.241 0.219 -0.094 0.070 59661 0.230 0.205 -0.087 0.075 59662 0.218 0.205 -0.082 0.075 59663 0.212 0.205 -0.080 0.075 59664 0.214 0.205 -0.078 0.075 59665 0.226 0.218 -0.077 0.083 59666 0.245 0.218 -0.076 0.083 59667 0.267 0.304 -0.075 0.084 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 59612 0.15 -0.23 59613 0.17 -0.26 59614 0.18 -0.29 59615 0.18 -0.24 59616 0.18 -0.16 59617 0.18 -0.08 59618 0.18 -0.01 59619 0.19 0.00 59620 0.19 -0.01 59621 0.20 -0.02 59622 0.21 -0.04 59623 0.21 -0.07 59624 0.22 -0.10 59625 0.23 -0.13 59626 0.22 -0.17 59627 0.21 -0.21 59628 0.20 -0.25 59629 0.20 -0.22 59630 0.19 -0.17 59631 0.19 -0.12 59632 0.18 -0.06 59633 0.18 -0.09 59634 0.17 -0.13 59635 0.16 -0.17 59636 0.16 -0.16 59637 0.15 -0.14 59638 0.14 -0.11 59639 0.14 -0.08